Hot Water to Go: Portable Battery-Powered Drink Heater
It seems like there is always a new cutting-edge coffee pot, an innovative grinder or some other gadget related to heating your favorite beverage in a complex and new fashion. Some of these have way more bells and whistles than one could ever need and are as likely to break as to work.
Contrasted to other often-complex designs of its type this concept is remarkably simple and elegant: a battery-powered portable water heater from Zwilling that slips onto the side of a mug and uses battery power to heat your drink. An indicator light comes on when the water reaches an ideal temperature.